Sun 30 Sep 2007

Etags can also be unique based on the server too, so if you’ve got multiple servers for a given site each could send a different etag for an identical file. Yahoo!'s 13 simple rules for speeding up your web site recomends turning off etags all together. Check out [link] (and the whole article). Also, if you install the Firebug YSlow add on for Firefox you can check each of these rules against any page on your site. It’s a pretty cool tool...

Wed 27 Aug 2008

Content-Encoding versus Transfer-Encoding

Today I discovered a “problem” where Apache’s mod_deflate changes a resource’s ETag value from “foo” to "foo"-gzip when compressing the representation. This problem has been a while in coming , and after some research I’m convinced that Apache’s...